refactor: simplify config

Author: fritz-c

.babelrc

@@ -1,14 +1,4 @@
 {
-  "presets": [
-    ["env", {
-      "targets": {
-        "browsers": ["last 2 versions", "ie >= 9"]
-      }
-    }],
-    "react"
-  ],
-  "plugins": [
-    "transform-object-rest-spread",
-    "react-hot-loader/babel"
-  ]
+  "presets": ["env", "react"],
+  "plugins": ["transform-object-rest-spread", "react-hot-loader/babel"]
 }

.storybook/addons.js

@@ -1,4 +1,2 @@
 /* eslint-disable import/no-extraneous-dependencies */
 import '@storybook/addon-options/register';
-import '@storybook/addon-notes/register';
-import '@storybook/addon-actions/register';

.storybook/config.js

@@ -5,6 +5,7 @@ import { setOptions } from '@storybook/addon-options';
 setOptions({
   name: 'React Sortable Tree',
   url: 'https://github.com/fritz-c/react-sortable-tree',
+  showAddonPanel: false,
 });
 
 function loadStories() {

.storybook/webpack.config.js

@@ -2,7 +2,6 @@
 
 import React from 'react';
 import { storiesOf } from '@storybook/react';
-// import { action } from '@storybook/addon-actions';
 import AddRemoveExample from './add-remove';
 import BarebonesExample from './barebones';
 import CallbacksExample from './callbacks';

examples/storybooks/index.js

@@ -70,8 +70,6 @@
     "react-dom": "^15.3.0 || ^16.0.0"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "^3.3.9",
-    "@storybook/addon-notes": "^3.3.9",
     "@storybook/addon-options": "^3.3.9",
     "@storybook/addon-storyshots": "^3.3.9",
     "@storybook/react": "^3.3.9",

package.json

@@ -27,7 +27,6 @@ const postcssLoader = {
 const cssLoader = {
   loader: 'css-loader',
   options: {
-    '-autoprefixer': true,
     importLoaders: true,
   },
 };